Brahman is Oneself.

Of course, Brahman is Oneself, that is to say, Brahman is One indivisible or undifferentiated Self; it is all that is as One for it is, it is all of us as One for we are. All this is Brahman for it would not be if it were not. Beingness or isness is Brahman. Brahman Itself Is. See all as Brahman; see all as Self for Brahman is Oneself.
~ Wald Wassermann